talleyeand baetlett



(No Model.) f

C. T. BAR'I'LETT.

SALT DRIRE.

I PatentedJu'ne 26, 1888.I

No. 384,958.v

www0/ci,

` Fig. 4.

UNITED STATES PATENT OFFICE.

c. TALLEYRAND BARTLETT, on wARsAW, NEW YORK.

SALT-Dalen.v

SPECIFICATION foming part of IllIei-.ters= Patent No. 384.953, dated June 26, 1888.

Application filed `April 11, 1887.

.To all whom, iii/may concern.-

Beit known that I, C. TALLEYEAND BART- LETT, residing at Warsaw, in the county of Wyoming and State of New York, have invented certain new and useful Improvements in Salt-Driers, of which the 'following is a specification, reference being had therein to the accompanying drawings.

This invention relates to driers especially intended for use in drying salt.

The invention consists in certain improvements in the construction of the wooden lining of the metallic shell of a drying-cylinder, its combination with the shell, and the mechanism for retaining it in position in the'shell.

In the drawings, Figure l is a longitudinal central section ofa salt-drier, the steamcylinder being shown partly in elevation and fpart being broken away. Fig. 2 is a cross section of the same on a larger scale. Fig. 8 is an in terior view of a broken piece of the cylinder, lining, and retaining-hoop. Fig. L,tis an elevation of a joint of the hoop and its expand-- ing-Wedge. Fig. `5 is a section on line ac x,

A indicates the usual metallic cylinder used in salt-driers. This cylinder ismountcd so as tostand in an inclined position,and is provided with mechanism for rotation, as is usual in this class of devices, and with supply and deliverywchutes orspouts, in a manner well known in the art.

Bis the interior heating-drum,which is supplied with steam or hot air. This drum is preferably composed of or coated with some metal which is but little affected by salt or brine, although the drum may be of iron.

C C indicate staves of wood, which may be tongued and grooved at their edges or not, as found most convenient. These staves serve to cover the entire inner surface of the cylinder A.

D D, Ste., indicate wooden hoops, which are expanded against the inner face of the staves C, which form the lining of the cylinder, in manner hereinafter explained. These hoops are by preference beveled to a thin edge on one side, (the upper side in the cylinder,) as at d, so that they present but little obstruction to the movement of grains 'of salt passing from the upper to the lower end of the cylinder; but at the other edge, d2, the hoops have Serial No.` 234,375. I* (No model.)

square shoulders, so that grains passing down the inside of the cylinder will fall over this square edge. The hoops are Aof a single piece ol' wood bent round, or of anumber of pieces either bent or sawed in segments of rings. The abutting ends ofthe hoop or hoop-section any other suitable way to hold the ends in line with each other. the abutting or adjacent ends of the hoop-sec tions, so that a wedge, E, may be inserted and have a bearing for its inclined faces `against the sides of the slot forming the adjacentwends ofthe hoop sections. sides of the slot be beveled. y

Now, when the wooden hoop is applied to the interior ofthe cylinder, as shown in Figs. 1, 2, and 3, the wedges E may bedriven in, and the bearing against the interior of the. staves C, and the staves will be held iirmly againstthe shell A ofthe cylinder. been expanded to place they may be more iirml y secured by belts H passing through elongated holes in the hoops and through the staves and shells. The holes I, through which the boltsv pass, are slightly elongated, so that the hoop may be allowed to expand uniformly when the keyE is driven in.

veyer flights or wings may be attached to lift the salt in the rotation of the cylinder. These iiights, when employed, should be of wood.

It will be understood that the expansible hoop forms a strong and simple means for that by contracting the hoops any one of the staves may be removed from the" cylinder.

I am aware that it is not broadly new to line a metallic cylinder withwooden staves. I am not aware, however, that wooden staves have been held against the interior surface of a metallic cylinder by expansible rings priorto my invention. i

The wooden lining prevents damage tosalt by corrosion of the interior surface of the cylinder. The wooden lining is cheap and can be easily removed and replaced. The wooden rings form sufficient obstruction to the onward passage of the salt during the rotation of the cylinder to break up lumps which might otherwise form.

may be halved together, as at e e', or joined in hoops may be expanded and brought to a rm The hoops D serve as a basis to which con-` Aslot, F, extends across y It is preferable that the'` After the'hoops have l holding the slaves against the cylinder, and` In some cases the exterior shell, A, may be composed of wood, paper, or similar material. In such case the exterior will be strengthened by hoops h', Fig. 1, which hoops may be made conipressible, in manner well known in the art. The outer and inner hoops in such case will preferably be so adjusted as to register with each other. Whether the shell be of wood or metal the lining will take the wear from it.

The eXpansible inner hoops,or some of them, may be made with both edges square, as shown at D in Fig. 1. These hoops serve a good purpose as litters in carrying up the salt as the cylinder rotates, owing in part to the inclined position of the cylinder. The more the salt is'agitated and the difterentcrystals separated the more thoroughly, speedily, and uniformly it will dry.

I am aware that a metallic cylinder has been lined with staves overlapping cach other at their ends, similar to the shingles of a house. This is objectionable, since it requires a special construction of staves tapering from end to end; also, in that it affords a space between the staves and the metallic cylinder for the lodgment of salt unless all the cracks between the stave's' be covered, which is a diicult thing to do, and then tine salt is apt to sift between the slaves. Further, as the staves are not supported by the walls of the shell, except foravery small part of their length, and as they leave spaces between the shell and lining, they are liable to warp and open thejoints between them.

l. A metallic drying-cylinder and mechanism to rotate the same, a lining for said cylinder consisting of wooden staves held in contact with the inner surface of said cylinder,

interior rings for retaining said staves in position, and a heating-drum passing longitudi. nally through the cylinder, all in combination substantially as described.

2. rl`he combination, with adrying-cylinder, of a wooden lining consisting of staves and eXpansible hoops lying in contact with theinterior surface of the staves, substantially as described.

3. The combination, with a metallic drying cylinder, of a wooden lining consisting of Staves lying in proximity to theinner surface of the cylinder, and divided wooden rings in contact with the staves, said rings expansible by means of a wedge between the proximate ends, substantially as described.

4. The combination, with the inner surface of a dryingcylinder having a wooden lining, of a series of expansible wooden rings having beveled edges, substantially as described.

5. The combination, with the metallic cylinder and staves, of a sectional wooden ring bearing against said staves, said ring having a slot through its proximate ends and a wedge lying in said slot, as set forth.

6. The combination, with the metallic dry ing-cylinder, the wooden lining for the same, and the interior hoops having expanding mechanism, substantially as described, and having elongated perforations therethrough, of bolts passing through theholes in thehoops, staves,and cylinder,substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

C. TALLEYRAND BARTLET'I.

Witnesses: v

C. L. MoRRIs, L. L. GHAFFEE. 

